Process Station ABB FieldController 800
48
7.7 Status diagram of the passive FieldController (Secondary)
7.8 States of the passive FieldController (Secondary)
no operating
system Operating system not active. The Secondary CPU is waiting for the trans-
mission of the user programs.
not sync The Secondary has logged on at the Primary: the user programs are loaded
but the process statuses have not yet been adjusted and the synchroniza-
tion is therefore not yet concluded.
sync The Secondary is synchronized and ready for a redundancy toggle. The cy-
clic data adjustment between the two FieldControllers runs during the pro-
gram processing.
The redundancy status of a resource can be evaluated using the system variables
xxxx.RedState.
See also Engineering Manual, System Configuration, Commissioning, Status displays of
the D-PS resource and Engineering Manual, IEC 61131-3 Programming, System Variables.
Primarysync
not Sync
no OS
Redundancy
toggle
Redundancy
toggle
Download of
Secondary
Synchronize
process data
Secondary
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